jedishrfu's latest activity

I remember the New Zealand disaster where a tour group disembarked on an island on their way to the rum of a volcano and it erupted...

Yeah me too! Learned the latest tech from this show. One good thing in the article, he helped the Internet Archive preserve all episodes.

I didn't recognize his name, but when I clicked into the link I definitely recognize his face. I think I watched a number of his...

https://arstechnica.com/gadgets/2026/01/stewart-cheifet-pbs-host-who-chronicled-the-pc-revolution-dies-at-87/

Congratulations to current and past winners of these awards. This is what keeps PhysicsForums going. "And now back to our regularly...

Based on the sketch, it seems that ##\theta## is the angle of cylindrical polar coordinates, not spherical polar coordinates. I agree...

Hi, may I remind you of the Homework Help Guidelines for Students and Helpers and ask for a few clarifications ? I spent some time...

How so? ##\sin^2(t) \ge 0## for all real numbers t. In particular, ##\sin^2(-\pi/2) = 1##.

In a more mathematical form that is easier to read, your first integral is: $$2\int_{-\pi/2}^{\pi/2}\int_0^{a\cos(t)}\int_0^{a^2 -...

Thats awesome. I can relate to working as an undergrad. I worked at a dept store as a sweeper/maint in the evenings to a small...

I think anything is possible, within reason, if you put in the work. I dropped out during 9th grade, never receiving more than a C from...

Your idea of scale-based universes within universes, while a fun topic for science fiction stories, is not part of scientists'...

Thank you very much for the thought. We have indeed secured the site and intend to maintain the wood related pages. All the best, Robert

old thread, but I found this interesting as I've started to replace all plastic kitchen and eat/drink ware with glass, wood, ceramic...

More condolences from the WoodBarter site where Paul was also a key member spreading his knowledge of wood...